CN207686807U - Vent gas treatment urea mixing device - Google Patents
Vent gas treatment urea mixing device Download PDFInfo
- Publication number
- CN207686807U CN207686807U CN201721828907.2U CN201721828907U CN207686807U CN 207686807 U CN207686807 U CN 207686807U CN 201721828907 U CN201721828907 U CN 201721828907U CN 207686807 U CN207686807 U CN 207686807U
- Authority
- CN
- China
- Prior art keywords
- addition type
- cyclone pipe
- type cylinder
- cylinder
- mixing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000004202 carbamide Substances 0.000 title claims abstract description 51
- 238000002156 mixing Methods 0.000 title claims abstract description 22
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 25
- 229910021529 ammonia Inorganic materials 0.000 abstract description 12
- 239000003595 mist Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 27
- 239000003054 catalyst Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model provides a kind of vent gas treatment urea mixing device, including addition type cylinder, air inlet pipe, main cylinder, cyclone pipe, urea nozzle mounting base；Addition type cylinder one end is connected on the circumferential surface of main cylinder；Air inlet pipe one end is connected on the circumferential surface of addition type cylinder, and the other end is as air inlet；The cyclone pipe is arranged in addition type cylinder and main cylinder；Cyclone pipe includes eddy flow section and hole pipeline section；Eddy flow section is located in addition type cylinder, and hole pipeline section is located in main cylinder；The eddy flow section of the cyclone pipe is equipped with whirlpool around cyclone pipe axis and generates blade, and the circumferential surface of the hole pipeline section is equipped with stomata；It is equipped with the urea nozzle mounting base aligned with cyclone pipe in the other end of addition type cylinder；One end of main cylinder is closed, another end opening, as gas outlet.The utility model can increase the mixed effect of ammonia mist, and tail gas is made to be sufficiently mixed with ammonia, be conducive to the processing of tail gas.
Description
Technical field
The utility model is related to a kind of vehicle tail gas processing urea mixing devices, belong to tail gas treatment system of diesel engine and set
Standby technical field.
Background technology
Increasingly strict with diesel engine emissions regulations, exhaust aftertreatment technology is the technical measures that must be used.And SCR
It disclosure satisfy that state IV, V and VI discharge standard of state, the basic principle of SCR are to pass through urea injection system（It is commonly called as urea pump）It will
32.5% concentration aqueous solution of urea atomization after spray into exhaust pipe in mix with motor exhaust, aqueous solution of urea by pyrolysis with
Hydrolysis generates ammonia（NH3）, ammonia is by harmful oxynitrides in diesel engine vent gas under the effect of the catalyst（NOx）
It is converted into harmless nitrogen (N2) and water, the top priority of motor exhaust treatment technology SCR routes is that tail gas is made to have with ammonia mist
The biochemical reaction of hybrid concurrency is imitated, while ensureing sufficient temp before entering catalyst.
Invention content
The purpose of the present invention is to solve existing SCR handle tail gas during ammonia and tail gas mixed path it is shorter, mix
The problem of closing insufficient influence vent gas treatment, provide it is a kind of simple in structure, it is compact to design to increase ammonia and tail gas is mixed
It is combined the vent gas treatment urea mixing device of diameter.The technical solution adopted in the utility model is：
A kind of vent gas treatment urea mixing device, mainly thes improvement is that, including addition type cylinder, air inlet pipe,
Main cylinder, cyclone pipe, urea nozzle mounting base；
Addition type cylinder one end is connected on the circumferential surface of main cylinder；Air inlet pipe one end is connected to the week of addition type cylinder
On face, the other end is as air inlet；
The cyclone pipe is arranged in addition type cylinder and main cylinder；Cyclone pipe includes eddy flow section and hole pipeline section；Eddy flow section
In addition type cylinder, hole pipeline section is located in main cylinder；The eddy flow section of the cyclone pipe is equipped with whirlpool around cyclone pipe axis
Blade is generated, the circumferential surface of the hole pipeline section is equipped with stomata；
It is equipped with the urea nozzle mounting base aligned with cyclone pipe in the other end of addition type cylinder；
One end of main cylinder is closed, another end opening, as gas outlet.
Further, one end of the nearly urea nozzle mounting base of cyclone pipe forward spin flow section is equipped with horn-like deflector.
Further, air inlet pipe is equipped with flow distribution plate with addition type cylinder junction.
Further, cyclone pipe is connect by support ring with addition type cylinder.
Further, stomata is uniformly distributed in the hole pipeline section circumferential surface of cyclone pipe.
Further, air inlet pipe is vertical with the axis of cyclone pipe.
Further, temperature sensor is equipped on addition type cylinder or main cylinder.
Further, addition type cylinder one end is biased to the blind end of main cylinder with the link position of main cylinder circumferential surface.
Further, the centre of urea nozzle mounting base is equipped with urea into hole, center and cyclone pipe axis of the urea into hole
In same axis.
The utility model has the advantage of：The urea mixing device is simple in structure, compact to design, easy to use, addition type
The setting of mixing chamber provides ammonia mist blending space, and the setting of cyclone pipe can increase the mixed effect of ammonia mist, mixed gas
It is dissipated around uniformly by eddy flow pore pipeline section, so that tail gas is sufficiently mixed with ammonia, be conducive to the processing of tail gas.
Description of the drawings
Fig. 1 is the outline structural diagram of the utility model.
Fig. 2 is the internal structure schematic diagram of the utility model.
Specific implementation mode
With reference to specific drawings and examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model provides a kind of vent gas treatment urea mixing device, including：Addition type cylinder
Body 1, flow distribution plate 2, air inlet pipe 3, main cylinder 4, round end cap 5, support ring 6, cyclone pipe 7, deflector 8, urea nozzle mounting base
9；
One end of the main cylinder 4 is closed with round end cap 5, and another end opening is as gas outlet；
Described 1 one end of addition type cylinder is connected on the circumferential surface of main cylinder 4, and link position is biased to the blind end of main cylinder 4,
So that mixed gas mixed path is longer；It is addition type mixing chamber in addition type cylinder 1；
3 one end of air inlet pipe is connected on the circumferential surface of addition type cylinder 1, and the other end is as air inlet；Air inlet pipe 3 and addition type
1 junction of cylinder is equipped with flow distribution plate 2；
The cyclone pipe 7 is arranged in addition type cylinder 1 and main cylinder 4；Cyclone pipe 7 passes through support ring 6 and addition type cylinder
Body 1 connects；Cyclone pipe 7 includes eddy flow section 701 and hole pipeline section 702；Eddy flow section 701 is located in addition type cylinder 1, hole pipeline section 702
In main cylinder 4；The eddy flow section 701 of the cyclone pipe is equipped with whirlpool around cyclone pipe axis and generates blade 703, the hole pipe
The circumferential surface of section 702 is evenly equipped with stomata；
The urea nozzle mounting base 9 aligned with cyclone pipe 7 is installed in the other end of addition type cylinder 1；Urea nozzle
The centre of mounting base 9 is equipped with urea into hole 901, and the center in urea into hole 901 is in same axis with cyclone pipe axis, to,
The urea ejected with the urea nozzle of urea nozzle mounting base connection can be parallel with eddy flow tube axis direction；More preferably,
One end of the nearly urea nozzle mounting base of cyclone pipe forward spin flow section is equipped with horn-like deflector 8；
Application method：The air inlet of air inlet pipe 3 is connected with the tail gas of automobile engine（Flanged joint, reducing can be used
Pipe connection, directly welding or direct extending cavity）, can also connect with other exhaust gas processing devices（Flanged joint can be used, become
The connection of diameter pipe is directly welded）；The tail gas of automobile engine is entered by air inlet pipe 3, and addition type cylinder is flowed into after the shunting of flow distribution plate 2
In body 1, air inlet pipe 3 is vertical with the axis of cyclone pipe 7, and tail gas generates blade 703 by the whirlpool of 7 eddy flow section of cyclone pipe and forms whirlpool
Vortex-like air-flow, urea are sprayed by the axis direction of the parallel cyclone pipe of urea nozzle mounted on urea nozzle mounting base 97, whirlpool
Shape air-flow breaks up urea, while urea volatilizes ammonia at high temperature, and 8 bootable gas flow purging urea nozzle of deflector is kept away
Exempt to crystallize.
Ammonia and vehicle exhaust be sufficiently mixed after gas, dissipated around by the hole pipeline section 502 of cyclone pipe 5, it is uniformly distributed
It is flowed out from gas outlet with parallel airflow in main cylinder 4；Mixed gas after outflow enters SCR catalyst and is catalyzed.
Temperature sensor can be also set on addition type cylinder 1 or main cylinder 4；It can more precisely by temperature sensor
Control tail gas catalytic treatment.
Entire urea mixing device is suitable for various cartridge types, box SCR type exhaust aftertreatment products, invention entirety
Structure size is small, and amplification and diminution appropriate can be also selected according to extraction flow, is a kind of economic, efficient, strong applicability urine
Plain mixing arrangement.
It should be noted last that the above specific implementation mode is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described the invention in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range, should all cover
In the scope of the claims of the present invention.
Claims (9)
1. a kind of vent gas treatment urea mixing device, which is characterized in that including addition type cylinder (1), air inlet pipe (3), main cylinder
Body (4), cyclone pipe (7), urea nozzle mounting base (9)；
Described addition type cylinder (1) one end is connected on the circumferential surface of main cylinder (4)；Air inlet pipe (3) one end is connected to addition type cylinder
On the circumferential surface of body (1), the other end is as air inlet；
Cyclone pipe (7) setting is in addition type cylinder (1) and main cylinder (4)；Cyclone pipe (7) include eddy flow section (701) and
Hole pipeline section (702)；Eddy flow section (701) is located in addition type cylinder (1), and hole pipeline section (702) is located in main cylinder (4)；The rotation
The eddy flow section (701) of flow tube is equipped with whirlpool around cyclone pipe axis and generates blade (703), and the circumferential surface of the hole pipeline section (702) is set
There is stomata；
It is equipped with the urea nozzle mounting base (9) aligned with cyclone pipe (7) in the other end of addition type cylinder (1)；
One end of main cylinder (4) is closed, another end opening, as gas outlet.
2. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
One end of the nearly urea nozzle mounting base of cyclone pipe forward spin flow section is equipped with horn-like deflector (8).
3. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
Air inlet pipe (3) is equipped with flow distribution plate (2) with addition type cylinder (1) junction.
4. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
Cyclone pipe (7) is connect by support ring (6) with addition type cylinder (1).
5. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
Stomata is uniformly distributed in hole pipeline section (702) circumferential surface of cyclone pipe.
6. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
Air inlet pipe (3) is vertical with the axis of cyclone pipe (7).
7. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
Temperature sensor is equipped on addition type cylinder (1) or main cylinder (4).
8. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
The blind end of main cylinder (4) is biased to the link position of main cylinder (4) circumferential surface in addition type cylinder (1) one end.
9. vent gas treatment urea mixing device as described in claim 1, which is characterized in that
The centre of urea nozzle mounting base (9) is equipped with urea into hole (901), center and cyclone pipe axis of the urea into hole (901)
In same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828907.2U CN207686807U (en) | 2017-12-23 | 2017-12-23 | Vent gas treatment urea mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721828907.2U CN207686807U (en) | 2017-12-23 | 2017-12-23 | Vent gas treatment urea mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686807U true CN207686807U (en) | 2018-08-03 |
Family
ID=62996003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721828907.2U Expired - Fee Related CN207686807U (en) | 2017-12-23 | 2017-12-23 | Vent gas treatment urea mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939489A (en) * | 2017-12-23 | 2018-04-20 | 无锡威孚力达催化净化器有限责任公司 | Vent gas treatment urea mixing device |
| CN109707491A (en) * | 2019-03-07 | 2019-05-03 | 广西玉柴机器股份有限公司 | The mixer of spraying system |
-
2017
- 2017-12-23 CN CN201721828907.2U patent/CN207686807U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939489A (en) * | 2017-12-23 | 2018-04-20 | 无锡威孚力达催化净化器有限责任公司 | Vent gas treatment urea mixing device |
| CN109707491A (en) * | 2019-03-07 | 2019-05-03 | 广西玉柴机器股份有限公司 | The mixer of spraying system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106523092B (en) | The conical surface type eddy flow urea mixing devices of page two | |
| CN108087067A (en) | Eddy flow urea mixing device | |
| CN106437982A (en) | Shaft-inlet and shaft-outlet barrel type aftertreatment assembly | |
| CN205190011U (en) | Cartridge SCR aftertreatment hybrid chamber | |
| CN106523091B (en) | Page window type eddy flow urea mixing device | |
| CN102652210A (en) | Method for dosing an urea based reducing agent into a gas exhaust stream | |
| CN108397262A (en) | Light-duty diesel vehicle oblique cutting eddy flow mix aperture pipe post-processes encapsulating structure | |
| CN206158826U (en) | SCR aftertreatment hybrid chamber structure of integrated nozzle | |
| CN205190012U (en) | Cartridge SCR aftertreatment hybrid chamber | |
| CN205297699U (en) | Mixing arrangement that admits air of SCR system | |
| CN207686807U (en) | Vent gas treatment urea mixing device | |
| CN205190013U (en) | SCR aftertreatment hybrid chamber | |
| CN208364220U (en) | A kind of parallel tube type post-processing structural assembly | |
| CN207686806U (en) | Vehicle tail gas processing urea mixing device | |
| CN106401711B (en) | Honeycomb hemisphere open type urea mixing device | |
| CN106337714B (en) | Nozzle integrated form SCR catalytic muffler | |
| CN106401715A (en) | Inclined tube type rotationally-flowing urea mixing device | |
| CN207686808U (en) | Side post-processes urea mixing device into nozzle integrated form SCR | |
| CN207686804U (en) | Eddy flow urea mixing device | |
| CN104847463A (en) | Nozzle integrated SCR post treatment unit and method thereof | |
| CN110374726A (en) | Double-cyclone urea mixing device | |
| CN107939489A (en) | Vent gas treatment urea mixing device | |
| CN202157846U (en) | Air-assisted injection system for diesel engine post-treating urea silicon controlled rectifier (SCR) system | |
| CN202162098U (en) | Nozzle used for post-processing urea SCR (Selective Catalyst Reduction) system of diesel engine | |
| CN106014580A (en) | Novel urea crystallization-prevention exhaust pipe used for diesel engine SCR system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 |